Automatic speed-governing device for internal-combustion engines



July 29, 1930.

A. T. HAMBERGER AUTOMATIC SPEED GOVERNING DEVICE FOR INTERNAL COMBUSTIONENGINES 2 SheetsSheet 1 v Filed April 17, 1928 v ln 'uentor A, T flaw 1Ze i' w' y Amrnqy July 29, 1930. Q A. T. HAMBERGER 1,771,437

AUTOMATIC SPEED GOVERNING DEVICE FOR INTERNAL COMBUSTION ENGINES FiledApril 1'7, 1828 2 Sheets-Sheet 2 Inventor 4. ffi mgergei' Attorneygovernor which includes the spaced collars 22 and 23 respectively. Thecollar 22 is fixedly secured on the forward end portion of'the shaft 20while the other collar is adapted for slidable and rotatable movement onthe shaft rearwardly of the fixed collar 22. A pair of flat resilientmetallic strips 24 and 25 are disposed on opposite sides of the shaft 20and are secured to the respective collars in any appropriate manner.

Opposed weighted blocks 26 and 2'7'are carried by the" intermediateportions of the springs 24 and 25, respectively, and as is clearly shownin Figure 2,.ach block is formed with a laterally extending lip 28 onone side thereof. A screw 29 is threaded through each lip and is formedat its inner end with an eye for receiving one end of a coil spring 30,the otherend of the'coilspring being secured to, the adjacent side ofthe opposite weighted block. 1 I i A nut 31 is threaded on therespective screw for engagement with the outer-face of the lip 28.i I II The slidable collar 23 is formed adjacent its rear end with an annularchannel '32 in the outer face thereof, as is shown more clearlyinfFigure 1 for receiving the inner opposed ends of the hooked shapedlugs 33 formed on the forward end of a sleeve 34 at diametricallyopposite points, as more clear- 1y shown in igure 4, and this'sleeve isslidable'on the rear portion-of the shaft 20 with the collar 23. An arm35 depends from the rear end of this sleeve and the lower extremity ofthe depending arm is-slightly offset as shown at 36, for a'purpose to bepresently described. I

A substantially horseshoe shaped bracket 37 encircles the lower smallerend portion of the intake manifold 15, thefree ends of the bracketbeingbent downwardly for attachment to the'bolts that connect theadjacent flanges of the intake manifold and the carburetor together. Astop formingp'in 138 projects upwardly from the innermost arm of thehorseshoe, shaped bracket as shown in Figure 3, and also in Figure 1 forapurpose also to be presently described.

The throttle valve of" the carburetor is shown in the dotted lines at 39in the drawings,'and the stem on which the throttlevalve is arranged isshown at 40. I e

Anrarm 41 is secured on'the upper-end of the stem for disposition abovethe topv of the carburetor 18; and operatively connected to the outerend of the arm isfone end of an L-shaped link 42. b V i f j AsubstantiallyUQshaped lever which is in the form of a-fiatbar andwhichis designated by the numeral43 ispivotally' securedat 44 on'the upperface of the horseshoelshaped bracket37, the pivoted end of the outermostarm being formedyvith a lateral:

that is provided at its outer end with an opening 46 for receiving thefree end of the offset portion 36 of the depending arm 35. The innermostportion of this U-shaped lever is slightly raised and the other arm isoperatively connected to the adjacent end of the link 42 in the manneras clearly shown in Figure 3. g

The operation of my improved automatic speed governing device may bereadily obvious from theconstruction shown and described, and it will beapparent that when a predetermined speed is reached, the collar 23 willmove inwardly toward the stationary collar 22 and the fiat spring stripswill be bowed outwardly and simultaneously with the forward slidingmovement of the collar 23 on the shaft20, the sleeve 34 will moveforwardly on the shaft causing the offset lower end 36 to effect theforward swinging movement of the U-shaped lever 43 on its pivot 44 andby reason of the L-shaped link connection 42 between the U-shaped leverand the arm 41 that is associated with the stem 40, the throttle valve39 will be actuated to regulate the flow of the fuel from the carburetorto the intake of the combustion engine throughthe intake manifold 15 andwhen the speed is reduced, the parts will again assume theirnormalpositions. The pin 38 is positioned to be engaged by the arm 41 ina manner to arrest the opening movement of the throttle valve 39 whensaid valve reaches its wide open position, as illustrated in Figure 3 ofthe drawings. It will thus be seen from the foregoing description, thatI have provided an automatic speed governing device for association withinternal combustion engines that are particularly adapted to be used asstationary engines for utilizing the motoras a source of external powerto drive various machinery, and due to its simplicity, the governingdevice can be readily and easily attached on the engine withoutnecessitating any material alterations of the parts of the engine withwhich said device is to be associated While I'have shown the preferredembodiment of my invention it is to be understood that minor changes in]the size,. shape and arrangement ,of parts may be resorted to withoutdeparting from the spirit of the invention and the scope of the appendedclaims. i v i Having thus described the invention, what I claim as newand desire to secure by Letters Patent is a 1. An automatic speedgoverning device for. internal combustion engines comprising incombination, an engine provided with a throttle valvecarrying stem, asubstantially horse shoe shaped bracket 7 encircling the lower portionof the intake manifold of the engine, and being secured'in a stationarymanner, a substantially u -shaped lever lot) pivoted at one end on thebracket and extending around the adjacent portion of the intakemanifold, an arm'extending laterally from the upper end of the-throttlevalve carrying stem, an L-shaped link operatively connecting the otherend of the U-shaped lever with the outer end of said arm, and a lateralextension formed on the pivoted end of the U-shaped lever for attachmentto a speed responsive device. t, 7

2. automatic speed governing device for internal combustion enginescomprising in combination, an engine provided with a throttle valvecarrying stem, a substantially horse shoe shaped bracket encircling thelower portion of the intake manifold of the engine, the free ends of thearms, of the bracket' being directed downwardly to provide attachinglugs for the bracket, a substantially U-shaped lever pivoted at one ofits ends'on the inner end ortion of one arm of the horse shoe shapedracket, said lever extending around the adjacent portion of the intakemanifold, an arm extending laterally from the upper end of the throttlevalve carrying'stem, an L-shaped link operatively connecting the otherend of the U-shaped lever with the outer end of said arm, a lateralextension formed on the pivoted end of the U-shaped lever for attachmenttora speed responsive device, and a stop forming pin struck up from thehorse shoe shaped bracket for limiting the swinging movement of the armthat extends laterally from the upper end of the throttle valve carryingstem.

In testimony whereof I affix my signature.

ADOLPI-I T. HAMBERGER.

